Pirate Dam, located in Highwood, Montana, on Shaw Creek, is a privately owned structure with a significant hazard potential.
Wind
Humidity
Completed in 1982, this earth dam stands at a height of 59.5 feet and has a hydraulic height of 57.4 feet, providing a storage capacity of 192 acre-feet. The dam serves purposes beyond water resource management, as it is classified under "Other" primary purpose and dam type.
Despite being a private structure, Pirate Dam is regulated and permitted by the Montana Department of Natural Resources and Conservation (DNRC). It is subject to state jurisdiction and inspection, ensuring its safety and compliance with regulations. With a maximum discharge of 100 cubic feet per second, the dam plays a crucial role in managing water flow in the area. While its condition assessment is currently not rated, the dam's risk potential is considered significant, highlighting the importance of continued monitoring and maintenance to mitigate any potential hazards.
Year Completed |
1982 |
Dam Length |
500 |
Dam Height |
59.5 |
River Or Stream |
SHAW CREEK |
Primary Dam Type |
Earth |
Hydraulic Height |
57.4 |
Nid Storage |
192 |
Hazard Potential |
Significant |
Nid Height |
60 |
Missouri River Near Great Falls Mt
|
3530cfs |
Belt Creek Near Monarch Mt
|
14cfs |
Missouri River At Fort Benton Mt
|
4720cfs |
Missouri River Near Ulm Mt
|
3160cfs |
Teton River At Loma Mt
|
30cfs |
Marias River Near Loma Mt
|
335cfs |
| Location | Reservations | Toilets |
|---|---|---|
Thain Creek Campground
|
||
Thain Creek
|
||
Thain Creek Camp Ground
|